Who's letters

Dear Cody,

Here's the deal. Every two days you will get a letter from me until prom night. I will not say who I am, but I will give you hints. On prom night you have to say who you think I am in front of everybody. If you get it right I'll tell you. If your wrong, you will never know who I am. I was dared to pick a crush of mine that no one knew and have then play this game. Here are your clues:

I am a kid at heart, and crushed on you for a cupple years, my life is no secret to you, I'm right under your nose. Hope you guess right! Love, ?-x